App Dev Worksheet: Accessibility

App development lesson 13: Accessibility · Set 301 · 40 questions

Developer's tip (Design for everyone): Our rule: text is at least 16 px; every icon has a text label for screen readers. Add captions to videos; never use colour as the only clue. Big touch targets and strong contrast help everyone.

1. 1.♿ A screen has 5 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
2. 2.True or false: “captions on videos” helps everyone use the app. (a) True (b) False
3. 3.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
   Title: 16 px
   Hint: 14 px
   Label: 18 px
   Caption: 22 px (a) Label (b) Hint (c) Title (d) Caption
4. 4.🔍 Which is the odd one out? (a) colour as the only clue (b) labels on every icon (c) sudden loud sounds (d) fast-flashing lights
5. 5.True or false: “labels on every icon” makes the app harder to use. (a) True (b) False
6. 6.♿ Showing right or wrong only in red and green is a problem for ___. (a) fast typists (b) the battery (c) the server (d) colour-blind users
7. 7.♿ Why add captions to videos? (a) so anyone can follow (b) to slow them down (c) to hide the sound (d) to add colour
8. 8.🔍 Which is the odd one out? (a) big touch targets (b) colour as the only clue (c) icons with no labels (d) fast-flashing lights
9. 9.♿ Does this help everyone, or make the app harder to use: colour as the only clue? (a) helps everyone (b) makes it harder
10. 10.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Hint: 26 px
    Menu: 16 px
    Title: 23 px
    Footer: 9 px (a) Title (b) Menu (c) Footer (d) Hint
11. 11.♿ Does this help everyone, or make the app harder to use: strong colour contrast? (a) makes it harder (b) helps everyone
12. 12.♿ Does this help everyone, or make the app harder to use: tiny tap areas? (a) makes it harder (b) helps everyone
13. 13.♿ Does this help everyone, or make the app harder to use: icons with no labels? (a) makes it harder (b) helps everyone
14. 14.🔍 Which is the odd one out? (a) big touch targets (b) labels on every icon (c) tiny tap areas (d) text that can grow
15. 15.True or false: “big touch targets” makes the app harder to use. (a) False (b) True
16. 16.♿ A screen has 11 icon buttons. Only 3 of them have a text label for screen readers. How many still need a label?
17. 17.Which of these makes the app harder to use? (a) strong colour contrast (b) big touch targets (c) labels on every icon (d) tiny tap areas
18. 18.♿ What should every icon-only button have for screen readers? (a) a sound (b) a text label (c) a bright colour (d) a long animation
19. 19.♿ A screen has 11 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
20. 20.♿ A screen has 5 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
21. 21.True or false: “text that can grow” helps everyone use the app. (a) False (b) True
22. 22.True or false: “colour as the only clue” helps everyone use the app. (a) False (b) True
23. 23.True or false: “sudden loud sounds” helps everyone use the app. (a) False (b) True
24. 24.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Label: 28 px
    Caption: 24 px
    Menu: 9 px (a) Label (b) Caption (c) Menu
25. 25.Which of these makes the app harder to use? (a) labels on every icon (b) captions on videos (c) fast-flashing lights (d) big touch targets
26. 26.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 17 px
    Label: 18 px
    Body text: 11 px
    Footer: 19 px
    Hint: 18 px (a) Label (b) Title (c) Footer (d) Body text
27. 27.Which of these helps everyone use the app? (a) icons with no labels (b) colour as the only clue (c) sudden loud sounds (d) captions on videos
28. 28.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Caption: 18 px
    Menu: 27 px
    Body text: 25 px
    Title: 13 px (a) Body text (b) Menu (c) Title (d) Caption
29. 29.♿ A screen has 10 icon buttons. Only 1 of them have a text label for screen readers. How many still need a label?
30. 30.♿ Does this help everyone, or make the app harder to use: sudden loud sounds? (a) helps everyone (b) makes it harder
31. 31.♿ Our rule: text is at least 16 px. How many texts on this screen are too small?
    Body text: 11 px
    Footer: 17 px
    Hint: 19 px
32. 32.Which of these helps everyone use the app? (a) sudden loud sounds (b) icons with no labels (c) tiny tap areas (d) text that can grow
33. 33.True or false: “big touch targets” helps everyone use the app. (a) True (b) False
34. 34.♿ A screen has 8 icon buttons. Only 2 of them have a text label for screen readers. How many still need a label?
35. 35.Which of these helps everyone use the app? (a) big touch targets (b) sudden loud sounds (c) tiny tap areas (d) icons with no labels
36. 36.Which of these makes the app harder to use? (a) sudden loud sounds (b) captions on videos (c) text that can grow (d) labels on every icon
37. 37.True or false: “strong colour contrast” helps everyone use the app. (a) True (b) False
38. 38.♿ What does a screen reader do? (a) makes text tiny (b) takes photos (c) plays music (d) reads the screen aloud
39. 39.♿ Our rule: text is at least 16 px. Which text on this screen is too small?
    Title: 26 px
    Body text: 9 px
    Hint: 23 px (a) Body text (b) Hint (c) Title
40. 40.🔍 Which is the odd one out? (a) labels on every icon (b) strong colour contrast (c) big touch targets (d) icons with no labels

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